/*
 * Copyright (c) 1997, 2000, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */
package javax.swing;

/**
 * A collection of constants generally used for positioning and orienting
 * components on the screen.
 *
 * @author Jeff Dinkins
 * @author Ralph Kar (orientation support)
 */
public interface SwingConstants {

    /**
     * The central position in an area. Used for
     * both compass-direction constants (NORTH, etc.)
     * and box-orientation constants (TOP, etc.).
     */
    public static final int CENTER = 0;

    //
    // Box-orientation constant used to specify locations in a box.
    //
    /**
     * Box-orientation constant used to specify the top of a box.
     */
    public static final int TOP = 1;
    /**
     * Box-orientation constant used to specify the left side of a box.
     */
    public static final int LEFT = 2;
    /**
     * Box-orientation constant used to specify the bottom of a box.
     */
    public static final int BOTTOM = 3;
    /**
     * Box-orientation constant used to specify the right side of a box.
     */
    public static final int RIGHT = 4;

    //
    // Compass-direction constants used to specify a position.
    //
    /**
     * Compass-direction North (up).
     */
    public static final int NORTH = 1;
    /**
     * Compass-direction north-east (upper right).
     */
    public static final int NORTH_EAST = 2;
    /**
     * Compass-direction east (right).
     */
    public static final int EAST = 3;
    /**
     * Compass-direction south-east (lower right).
     */
    public static final int SOUTH_EAST = 4;
    /**
     * Compass-direction south (down).
     */
    public static final int SOUTH = 5;
    /**
     * Compass-direction south-west (lower left).
     */
    public static final int SOUTH_WEST = 6;
    /**
     * Compass-direction west (left).
     */
    public static final int WEST = 7;
    /**
     * Compass-direction north west (upper left).
     */
    public static final int NORTH_WEST = 8;

    //
    // These constants specify a horizontal or
    // vertical orientation. For example, they are
    // used by scrollbars and sliders.
    //
    /** Horizontal orientation. Used for scrollbars and sliders. */
    public static final int HORIZONTAL = 0;
    /** Vertical orientation. Used for scrollbars and sliders. */
    public static final int VERTICAL = 1;

    //
    // Constants for orientation support, since some languages are
    // left-to-right oriented and some are right-to-left oriented.
    // This orientation is currently used by buttons and labels.
    //
    /**
     * Identifies the leading edge of text for use with left-to-right
     * and right-to-left languages. Used by buttons and labels.
     */
    public static final int LEADING = 10;
    /**
     * Identifies the trailing edge of text for use with left-to-right
     * and right-to-left languages. Used by buttons and labels.
     */
    public static final int TRAILING = 11;
    /**
     * Identifies the next direction in a sequence.
     *
     * @since 1.4
     */
    public static final int NEXT = 12;

    /**
     * Identifies the previous direction in a sequence.
     *
     * @since 1.4
     */
    public static final int PREVIOUS = 13;
}
